About merit pay for teachers: If we give money to a teacher because his students did better on the test one year, do we take the money away when the students don't do better?
And if, per chance, student scores in that teacher's class were to vary from year to year, forget financially, what are we to make of that conundrum pedagogically, statistically, educationally, socio-economically, policyily, personally, professionally, confusingly?